Republican presidential nominee Donald Trump used a surprise stop in Chicago Wednesday to target Hillary Clinton for failing the bar exam in Washington D.C. years ago and claimed he would be "the greatest president for jobs that God has ever created." Mary Ann Ahern reports. (Published Wednesday, Sept. 28, 2016)

Republican presidential nominee Donald Trump used a surprise stop in Chicago Wednesday to target Hillary Clinton for failing the bar exam in Washington D.C. years ago and claimed he would be "the greatest president for jobs that God has ever created."

“Hillary Clinton, who I happen to believe is grossly incompetent, by the way, I just feel she’s grossly incompetent,” Trump said at Chicago’s Polish National Alliance, “Hillary Clinton is going to increase taxes and she didn’t pass her bar exam in Washington, D.C. A lot of people don’t know that.”

“I happen to believe that she’ll be very, very bad for our country. I think it will be worse than four more years of Obama,” he added.

He vowed, if elected, he'll be the "greatest president for jobs that God ever created."

According to NBC News, Clinton failed the bar exam in D.C. in 1973. Trump first admonished Clinton for failing the exam in a tweet last month. In her 2003 autobiography “Living history,” Clinton noted that she failed the D.C. bar exam the same summer she passed the Arkansas bar.

“Despite the satisfaction of my work, I was lonely and missed Bill more than I could stand,” Clinton told NBC News. “I had taken both the Arkansas and Washington, D.C. bar exams during the summer, but my heart was pulling me toward Arkansas,” she wrote. “When I learned that I passed in Arkansas but failed in D.C., I thought maybe my test scores were telling me something."

Trump, who was criticized following Monday’s presidential debate for sniffling onstage despite his staff denying reports, sounded a bit nasally during Wednesday’s event. The Republican, who famously called his opponent Jeb Bush “low energy” during the Republican primaries, seemed to lack his typical gusto during the speech.

The real estate magnate was introduced Wednesday by former New York Mayor Rudy Giuliani, who thanked Chicago for sending police officers in the wake of the 9/11 attacks and faulted the Obama Administration and former Secretary of State Clinton for resetting the United State’s relationship with Russia and giving up a nuclear defense of the Czech Republic and Poland.

Giuliani also had some harsh words for Russia, claiming the U.S. needs to bolster its military to defend against Russian President Vladimir Putin, who he called a “bully.”

“[Trump] doesn’t know Putin, he’s never met Putin,” Giuliani said. “Will he negotiate with Putin? Yes. Did Reagan negotiate with Gorbachev? Yes. But he’s going to negotiate with him from a position of military strength that dwarfs the Soviet... I’m sorry, Russia.”

Following the introduction, Trump pledged to support the Polish community in America.

“The Polish people are great people, these are great people, and if I get elected, believe me, we take care of all our people, all of our people,” Trump said. “But we do have a very, very special place because Polish-Americans, what you’ve done for this country, is really incredible and I don’t think frankly that people know the great sacrifices that you’ve gone through,” he added.

The Republican also boasted about being dubbed “Mr. Brexit” after championing the United Kingdom’s withdrawal from the European Union earlier this year, breaking with President Barack Obama, who opposed the move.

Trump claimed that America would "have a job growth like we’ve never seen” if taxes and regulations could be cut on businesses. He faulted Obama for the national deficit growing to unprecedented levels during his administration and bemoaned the nation's faltering infrastructure, schools, hospitals and airports.

The Republican nominee is now set to attend a big-ticket fundraiser at Bolingbrook Golf Club Wednesday afternoon.